Remove a reference that's not in CPython docs yet.

encukou · encukou · commit f98bc5765401 · 2021-04-29T16:50:50.000+02:00
diff --git a/c-api.rst b/c-api.rst
@@ -9,7 +9,7 @@ The C API is divided into three sections:
    underscore is also considered private.
 2. The public C API, available when ``Python.h`` is included normally.
    Ideally declared in ``Include/cpython/``.
-3. The Limited API, available with :c:macro:`Py_LIMITED_API` defined.
+3. The Limited API, available with ``Py_LIMITED_API`` defined.
    Ideally declared directly under ``Include/``.
 
 Each section has higher stability & maintenance requirements, and you will
